Spring-bed



(No Model.)

C. G. FERRY.

SPRING BED.

Patented Feb. 7, 1888.

OARLOSTIN G. FERRY, OF HILLSBOROUGH, ASSIGNOR OF ONE-HALF TO ROSTO O.\VOOD, OF MANCHESTER, NEWV HAMPSHIRE.

SPECIFICATION iorming part of Letters Patent No. 377,377, dated February7, 1888.

(No model.)

To all whom it may concern.-

Be it known that I, CARLOSTIN CYRUSFERRY, of Hillsborough, county ofHillsborough and State of New Hampshire, have invented anew andusefulImprovement in SpringBeds; and I hereby declare the following tobe a full,clear, and exact description thereof, reference being had tothe drawings which form a part of this specification, in which- Figure lis a sectional plan view of my invention, showing the head portion ofthe bed elevated to an inclined position. Fig. 2 represents a plan viewof the piece containing the tooth-rack and groove combined, for purposeshereinafter explained. Fig. 3 shows a metallic groove for purposesfurther on explained and in what manner applied.

The object of this invention is to provide a suitable mechanism forraising or lowering the head portion of a spring-bed to change theposition of an invalid at pleasurcwithout the aid of chairs or othersupport, as now resorted to, and in such a manner that no part of thebedspring-frame support shall be weakened but strengthened instead at apoint where most needed.

It consists in attaching to the main framesupport a projection of hardwood or iron, preferably the latter, on which may be formedratchet-teeth in a horizontal position, and at right angles with whichis a groove with or without a slot on its posterior surface forbolthead, if desired, both of which I prefer to have cast in one piece,(but maybe otherwisc, the tooth-rack to receive a pawl and the groovesto receive end pins, friction-rollers,or bolts for purposes hereinafterexplained and in what manner employed.

A represents one of the longitudinal supporting-bars of a spring-bed,upon which the springs are placed. The pieces B are made about two feetin length parallel with each other, and held firmly in position by meansof cross-slats oriron rods. On this frame so made rest about one-thirdof the springs used for the bed. To the externalperpendicularsurface ofpieces 15,1 attach apiece of hard wood or metal, in which isa groove forthe reception of a metal pin, friction-roller, or bolt. (Seen at 0.)(See Fig. 2.) The pin, friction-roller, or bolt is made a fixture at oneend of lever D, and at the other end there is a similar pivot or boltworking in another groove at right angles with the horizontaltooth-rack, both of whichi. 0., tooth-rack and groove-are represented inone piece and fastened to longitudinal bar A.

D is a lever pivoted to link G at points h intermediate between pivotsor bolts (6 andf, which operate within the grooves made fast to theexternal surface of longitudinal bars A and B, respectively. The links Gare pivoted to the longitudinal bar A at one end and to the supplementalbar B at the other. If iron rods are used to connect the bars B, theirends may be used as pins to engage with the metallic grooves, ifdesired.

On the pivot or bolt at the lower end of lever D, I place thereonloosely a pawl, K,which engages with the horizontal tooth-rack when thehead portion of the bed is being raised,and the pawls K orratchet-clicks must necessarily work simultaneously and easily withoutthe necessity of any connecting crosspiece or weight of any kindwhatever,because,being fitted loosely upon the pivot or bolt, they mustof their own weight fall into place as they are drawn over thetootlrrack while the section is being raised.

Another way to combine a groove with the horizontal tooth rack would beto place a groove below the tooth-rack on one or both sides thereof andat right angles therewith, presenting a similar appearance to a T-railwith tooth-rack on top, and allow a projecting flange or flanges on thepawl or ratchet-click to engage therein, and it will work equally aswell for all practical purposes and with no extra expense.

I am aware that one Charles D. Rodebaugh obtained Letters Patent on asomewhat similar device to my own for raising the head portion of aspring-bed; but in his device the grooves were chiseled out of thelongitudinal bar or sectionsupport, thereby weakening them to such adegree that several have been broken while attempting to adjust the headportion of the bed in position, besides much valuable time is wasted indigging out those slotted grooves, and withal there is too much frictionon the pivot or bolt working therein for all prac- IOC tical purposes inits adjustment; and, too, he attaches a cross-piece to the upper portionof the 2. The combination of a combined horizontal tooth-rack and grooveprovided with slot on its posterior surface for bolt-head,withlongitudinal bars of a frame-support of a springbed, and supplementalsection thereof with 20 groove attachment, paw] K, levers D, and linksG, as and for the purposes herein described and set forth.

OARLOSTIN O. FERRY.

\Vitnesses:

N. U. LANG, J. B. WVooD.

